//
//  SceneDelegate.swift
//  TUICallKitApp
//
//  Created by adams on 2021/5/7.
//  Copyright © 2021 Tencent. All rights reserved.
//

import UIKit

class SceneDelegate: UIResponder, UIWindowSceneDelegate {
    
    var window: UIWindow?
    
    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
        // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
        // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
        // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
        guard let windowScene = (scene as? UIWindowScene) else { return }
        self.window = UIWindow.init(windowScene: windowScene)
        self.window?.backgroundColor = UIColor.white
        
        let loginVC = LoginViewController.init()
        let nav = UINavigationController.init(rootViewController: loginVC)
        self.window?.rootViewController = nav
        self.window?.makeKeyAndVisible()
    }
    
    func sceneDidDisconnect(_ scene: UIScene) {
        // Called as the scene is being released by the system.
        // This occurs shortly after the scene enters the background, or when its session is discarded.
        // Release any resources associated with this scene that can be re-created the next time the scene connects.
        // The scene may re-connect later, as its session was not necessarily discarded (see `application:didDiscardSceneSessions` instead).
    }
    
    func sceneDidBecomeActive(_ scene: UIScene) {
        // Called when the scene has moved from an inactive state to an active state.
        // Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
    }
    
    func sceneWillResignActive(_ scene: UIScene) {
        // Called when the scene will move from an active state to an inactive state.
        // This may occur due to temporary interruptions (ex. an incoming phone call).
    }
    
    func sceneWillEnterForeground(_ scene: UIScene) {
        // Called as the scene transitions from the background to the foreground.
        // Use this method to undo the changes made on entering the background.
        
        // 清除当前 APP 的推送通知
        UNUserNotificationCenter.current().removeAllDeliveredNotifications()
        UNUserNotificationCenter.current().removeAllPendingNotificationRequests()
    }
    
    func sceneDidEnterBackground(_ scene: UIScene) {
        // Called as the scene transitions from the foreground to the background.
        // Use this method to save data, release shared resources, and store enough scene-specific state information
        // to restore the scene back to its current state.
    }
    
    static func getKeyWindow() -> UIWindow? {
        if #available(iOS 13.0, *) {
            return UIApplication.shared.windows.first(where: {$0.isKeyWindow})
        } else {
            return UIApplication.shared.keyWindow
        }
    }
    
}

